1 Main Chimes and 2 Push Button Bell. 12V 23A ALK battery for the push button remote is INCLUDED. Wireless doorbell operating at 600~1000 feet in open air
36 different chimes. 4 levels of adjustable ringing volume from 30~110 dB
No batteries required for the receiver. Simply plug it into a power supply (US Standard)
Each receiver works with up to 10 transmitters for added security and convenience
Screws and double-sided adhesive tapes included for easy installation of the transmitter
